Michael forst



(No Model.)

M. FORST. I

APPARATUS FOR FEEDING WHITE LEAD.

No. 331,698. PatentedDec. 1, 1885.

N. PiTEflS. Pholo-Lilmgrnpher. Walhirlgkcm n lil'nrrnn S rains Farnrv'r Diaries.

MICHAEL FORST, OF ST. LOUIS, MISSOURI, ASSIG-NOR TO THE SOUTHERX WHITE LEAD COMPANY, OF SAME PLACE.

APPARATUS FOR FEEDlNG NHlTE LEAD.

SPECIFICATION forming part of Letters Patent No. 331,698, dated December 1, 1885.

Application filed June 8, 1885. Serial h'o. l68,059. (N0 model.)

To aZ-Z whom it may concern.-

Be it known that I, MICHAEL Fonsr, of the city of St. Louis, State of Missouri, have invented a certain new and useful Improve ment in Devices for Feeding \Vhite Lead, &c., into Kegs and other Vessels, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming fart of this specification.

This is a device for feeding ground white lead and similar substances from the cooling apparatus into the vessel in which it is sold to the trade. The ground white lead is so tenacious in character that it is very diflicult, with the hand-instruments now used, to force it from the cooling-pan into the keg, can, or other vessel; but this is easily accomplished by this device without endangering the health of the operator by contact with the lead, and by its use the lead can be fed into vessels having a very diminutive neck or month.

Figure 1 is a front elevation of the device; Fig. 2- is a vertical section at 2 2, Fig. 1. Fig. 8 is a horizontal section at 3 3, Fig. 2.

A is part of an ordinary circular coolingpan to whose circumference the lead is can ried by flights on revolving arms.

B is an orifice in the bottom of the pan (at the circumference) through which the lead descends into a funnel, C. In thefunnelOis a rotary spiral conveyor, D, which is made conical, so as to fit the inside of the funnel. It will be seen that when the conveyor rotates, in the direction indicated by the arrow, upon the drive-pulley the material in the funnel will be forced downward and through the nozzle E into the vessel F. The nozzle E is made removable, being attached to the lower end of the funnel by bayonet-fastenings G, which fastening device is so well known that no description is needed. A nozzle of any length or size may be used.

D is the shaft of the conveyer. It has bearing in the head H, which is upon a bridge, I.

J is a collar on the conveyor-shaft, which occupies the lower end of a recess, K, of the head and bears against the bottom of the. recess, so as to give vertical support to the shaft I). The top of the collar J has ratchetteeth j, which engage with similar teeth, Z,

upon the under side of a collar, L, upon the drive-shalt M, which carries the drive-pulley N. The clutchcollar L has spline-connection with the shaft M and has vertical move ment thereon, so that the clutch jl may be thrown into or out of engagement. The shaft M is surrounded by a spiral spring, 0, whose lower end rests upon the clutch-collar L and tends to hold the clutch in engagement. The collar L has a circumferential groove, Z, in which fits the toe p of a lever, P, that carries an adjustable weight, Q, which may he made to hold up the clutch-collar L by moving it to the end of the lever. The clutch is shown disengaged in Fig. 1 and engaged in Fig. 2. The upper end of the spring 0 bears against a fixed collar, M, of the shaft M, and the up per end of the collar M has bearing against the screw-cap B of the head H. The lower end, at, of the shaft M is stepped in a socket in the upper end of the shaft D. (See Fig. 2.)

It will be seen that the resistance of the lead will tend to lift ihe shaft D. This upward pressure comes first upon the lower end of the shaft M and ultimately upon the cap It.

This apparatus may be used in feeding any plastic material into vessels or from vessel to vessel.

I am aware that spiral conveyors are in themselves not new, and that they have been used for the purpose of feeding plastic materials-as, for example, in tile -machines. Such, therefore, I do not claim as my invention. The annular opening in a tile-machine which gives shape to the tile is not the equivalent of the nozzle employed by me.

I claim 1. The combination, with the pan having the orifice in the bottom and vessel or receptacle having a filling-orifice, of a tube or funnel, and a spiral conveyer within said tube or funnel, for the purpose set forth.

2. The combination, with the pan A, having the orifice B, and the receptacle F, hav ing the fillingoriiice, of the tapering funnel 0, having the contracted nozzle E, and the spiral conveyor within said funnel, for the purpose setforth.

3. The combination, with a pan havidg a orifice in the bottom thereof and a receptacle the drive-shaft and engaging a fixed clutch- IO collar on the conveyer-shaft, aspring holding the clutch in engagement, and a lever arranged to lift the movable clutch-collar, substantially as set forth.

MICHAEL FORST.

\Vitnesses:

SAML. KNIGHT, BENJN. A. KNIGHT. 

